oak-cli/config/babel-plugin/oakRender.js

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const fs = require('fs');
const { relative, resolve } = require('path');
const t = require('@babel/types');
const { assert } = require('console');
module.exports = (babel) => {
return {
visitor: {
Program(path, state) {
const { cwd, filename } = state;
const rel = relative(cwd, filename).replace(/\\/g, '/');
if (/pages|components[\w|\W]+index\.(web.ts|ts)$/.test(rel)) {
const tsxFile = filename.replace(/\.(web.ts|ts)$/, '.tsx');
const tsxFileExists = fs.existsSync(tsxFile);
const pcTsxFile = filename.replace(/\.(web.ts|ts)$/, '.pc.tsx');
const pcTsxFileExists = fs.existsSync(pcTsxFile);
/** 根据tsx文件存在的情况注入如下的render代码
* if (true) {
const renderMobile = require('./index.tsx').default;
return renderMobile.call(this);
}
else {
const renderScreen = require('./index.pc.tsx').default;
return renderScreen.call(this);
}
*/
const renderStatements = [
t.variableDeclaration('const', [
t.variableDeclarator(
t.identifier('render'),
t.memberExpression(
t.callExpression(t.identifier('require'), [
t.stringLiteral('./index.tsx'),
]),
t.identifier('default')
)
),
]),
t.returnStatement(
t.callExpression(
t.memberExpression(
t.identifier('render'),
t.identifier('call')
),
[t.thisExpression()]
)
),
];
const renderPcStatements = [
t.variableDeclaration('const', [
t.variableDeclarator(
t.identifier('render'),
t.memberExpression(
t.callExpression(t.identifier('require'), [
t.stringLiteral('./index.pc.tsx'),
]),
t.identifier('default')
)
),
]),
t.returnStatement(
t.callExpression(
t.memberExpression(
t.identifier('render'),
t.identifier('call')
),
[t.thisExpression()]
)
),
];
const statements = [];
if (tsxFileExists && pcTsxFileExists) {
statements.push(
t.ifStatement(
t.binaryExpression(
'===',
t.memberExpression(
t.memberExpression(
t.thisExpression(),
t.identifier('props')
),
t.identifier('width')
),
t.stringLiteral('xs')
),
t.blockStatement(renderStatements),
t.blockStatement(renderPcStatements)
)
);
} else if (tsxFileExists) {
statements.push(...renderStatements);
} else if (pcTsxFileExists) {
statements.push(...renderPcStatements);
} else {
assert(
false,
`${filename}文件中不存在index.tsx或者index.pc.tsx`
);
}
const node = path.node;
const body = node.body;
body.forEach((node2) => {
if (
node2 &&
node2.declaration &&
node2.declaration.callee &&
(node2.declaration.callee.name === 'OakPage' ||
node2.declaration.callee.name ===
'OakComponent')
) {
node2.declaration.arguments.forEach((node3) => {
if (t.isObjectExpression(node3)) {
const propertyRender = t.objectProperty(
t.identifier('render'),
t.functionExpression(
null,
[],
t.blockStatement(statements)
)
);
node3.properties.unshift(propertyRender);
}
});
}
});
}
},
},
};
};